| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 07/31/1997 | WO1997027726A1 Method and control circuit for regulation of the operational characteristics of gas discharge lamps |
| 07/31/1997 | WO1997027611A1 Inductive tuners for microwave driven discharge lamps |
| 07/31/1997 | DE19702500A1 Position detection apparatus for electronically controlled photographic camera |
| 07/31/1997 | DE19702497A1 Strobe charging system for capacitor used in photographic flash unit in camera |
| 07/31/1997 | DE19702494A1 Camera body with housing facility for flexible printed circuit board |
| 07/31/1997 | DE19702492A1 Lens barrel with linear guiding mechanism |
| 07/31/1997 | DE19702487A1 Zoom-lens type compact camera with shutter accommodated in movable barrel |
| 07/31/1997 | DE19702485A1 Lens supporting mechanism for electronic camera |
| 07/31/1997 | DE19613257A1 Verfahren und elektronische Steuerschaltung zum Regeln des Betriebsverhaltens von Gasentladungslampen A method and electronic control circuit for controlling the operating behavior of gas discharge lamps, |
| 07/31/1997 | CA2244166A1 Inductive tuners for microwave driven discharge lamps |
| 07/30/1997 | EP0786193A1 Ballast circuit |
| 07/30/1997 | EP0786192A1 Single transistor ballast with filament preheating |
| 07/30/1997 | EP0786165A1 Inductively powered lighting |
| 07/30/1997 | EP0771440A4 Externally dimmable electronic ballast |
| 07/30/1997 | CN1155967A Electrical power control system |
| 07/30/1997 | CN1155825A Method for operating discharging lamp and circuit apparatus therefor |
| 07/29/1997 | US5652929 Camera having a through-the-lens automatic light adjustment control device |
| 07/29/1997 | US5652504 Energy saving power control system |
| 07/29/1997 | US5652481 Automatic state tranition controller for a fluorescent lamp |
| 07/29/1997 | US5652480 Electronic ballast incorporating a clocked switching controller |
| 07/29/1997 | US5652479 Lamp out detection for miniature cold cathode fluorescent lamp system |
| 07/24/1997 | WO1997026779A1 Discharge lamp lighting device |
| 07/24/1997 | WO1997026705A1 An oscillator |
| 07/24/1997 | DE19700401A1 Stromversorgungsschaltung für eine Entladungslampe Power supply circuit for a discharge lamp |
| 07/23/1997 | EP0785704A1 Electronic circuit for driving and operating ballasts for discharge lamps |
| 07/23/1997 | EP0785703A1 Control device for a low pressure fluorescent lamp |
| 07/23/1997 | EP0785702A2 Methods and apparatus for operating a discharge lamp |
| 07/23/1997 | EP0785670A2 Color image reader |
| 07/23/1997 | EP0784912A1 Circuit arrangement |
| 07/23/1997 | CN1155368A Method and circuit arrangement for operating high pressure discharging lamp |
| 07/23/1997 | CN1155227A Driving device of cold-cathod fluorescent lamp using piezoelectric transformer |
| 07/22/1997 | US5650925 Diode clamping arrangement for use in electronic ballasts |
| 07/22/1997 | US5650695 Illumination unit; and electrodeless low-pressure discharge lamp, holder, and supply unit suitable for use in the illumination unit |
| 07/22/1997 | US5650694 Lamp controller with lamp status detection and safety circuitry |
| 07/16/1997 | CN1154785A Single transistor ballast with filament preheating |
| 07/16/1997 | CN1154767A Multi-resonant inverter |
| 07/16/1997 | CN1154642A Circuit arrangement |
| 07/16/1997 | CN1154641A Timing of different phases in ignition circuit |
| 07/16/1997 | CN1154566A Discharge lamp having light-transmissive conductive coating for RF containment and heating |
| 07/15/1997 | US5648702 For controlling the luminance of lamps |
| 07/15/1997 | US5648656 System to optimize artificial lighting levels with increasing daylight level |
| 07/09/1997 | EP0774198A4 Modular uninterruptible lighting system |
| 07/09/1997 | EP0660994B1 Device for igniting gas discharge lamps |
| 07/09/1997 | EP0634087B1 Electronic ballast for a gas discharge lamp |
| 07/09/1997 | CN1154198A Circuit arrangement |
| 07/09/1997 | CN1154057A Large-power high-power factor electronic power-saving lamp |
| 07/08/1997 | US5646486 Fail-safe uninterruptible lighting system |
| 07/03/1997 | WO1997024018A1 System for providing a constant level current to a fluorescent tube |
| 07/03/1997 | WO1997024017A1 Elimination of striations in fluorescent lamps driven by high-frequency ballasts |
| 07/03/1997 | WO1997024016A1 Control and protection of dimmable electronic fluorescent lamp ballast with wide input voltage range and wide dimming range |
| 07/03/1997 | DE19654572A1 Control circuit for electronic load determining lamp switching operation |
| 07/03/1997 | DE19654539A1 Control circuit for motor vehicle headlight HV discharge lamp |
| 07/03/1997 | DE19653604A1 Ballast unit for starting fluorescent lamp |
| 07/02/1997 | EP0782374A1 Inverter circuit for lighting a cold-cathode tube by the use of a piezoelectric transformer |
| 07/02/1997 | EP0781500A1 Circuit arrangement |
| 07/02/1997 | CN1153447A Circuit arrangement |
| 07/01/1997 | US5644480 Power source device |
| 06/26/1997 | WO1997023119A1 Discharge lamp operating electronic device |
| 06/26/1997 | DE19548325A1 Single-end base type tube for compact fluorescent lamp |
| 06/25/1997 | EP0781078A2 Circuit for operating dielectric barrier lamps by pulses |
| 06/25/1997 | EP0781077A2 Circuit for operating a lamp |
| 06/25/1997 | EP0780882A2 Electrodeless discharge lamp with a diaphragm member |
| 06/25/1997 | EP0780881A2 Electrodeless discharge lamp |
| 06/25/1997 | CN1152992A Method for making at least one fluorescent lamp runningby electronic ballast and electronic ballast thereof |
| 06/25/1997 | CN1035299C Zero-voltage complementary switching high-efficient D type amplifier |
| 06/24/1997 | US5642065 Zero-voltage switching circuitry, as for use in resonant inverters |
| 06/24/1997 | US5642019 Safety protector for non-isolated ballasts |
| 06/24/1997 | US5642016 Drive circuit for a solar lamp with automatic electrical control of the lamp operating conditions |
| 06/19/1997 | WO1997022232A1 Ballast system |
| 06/19/1997 | WO1997022231A1 Ballast system |
| 06/19/1997 | CA2165516A1 Fluorescent-lamp protection device in an electronic instant starter assembly |
| 06/18/1997 | EP0779769A1 Neon gas discharge lamp and method of pulsed operation |
| 06/18/1997 | EP0779768A2 Process and circuit for operating a discharge lamp |
| 06/18/1997 | EP0779767A1 A rare gas discharge fluorescent lamp device |
| 06/18/1997 | EP0779016A1 Circuit arrangement |
| 06/18/1997 | EP0609420B1 Apparatus for pulsed electrical power circuitry |
| 06/17/1997 | US5640624 High-speed charge flash for a camera |
| 06/17/1997 | US5640622 Electronic flash apparatus of a camera |
| 06/17/1997 | US5640620 Radiation regulating device for an electronic flash device and method for regulating same |
| 06/17/1997 | US5640313 Inverter unit |
| 06/17/1997 | US5640070 For use with a d.c. voltage source |
| 06/17/1997 | US5640069 Modular lighting system |
| 06/17/1997 | US5640061 Modular lamp power supply system |
| 06/13/1997 | CA2192505A1 Neon gas discharge lamp and method of pulsed operation |
| 06/12/1997 | WO1997021329A1 Starter for a high-pressure gas-discharge lamp |
| 06/12/1997 | WO1997021328A1 Input circuit for the starter of a high-pressure gas-filled discharge lamp |
| 06/12/1997 | WO1997021327A1 Improved starting device for fluorescent lamps |
| 06/12/1997 | WO1997021264A1 Power supply for non-linear loads |
| 06/12/1997 | DE19639873A1 Integrated circuit for driving MOS gated power semiconductor devices |
| 06/11/1997 | EP0778722A2 Electrodeless lamp starting/operation with sources at different frequencies |
| 06/11/1997 | EP0777954A2 Circuit arrangement |
| 06/11/1997 | EP0777929A1 Fail-safe lighting system with load shedding and dimming |
| 06/11/1997 | EP0777872A1 Low frequency square wave electronic ballast for gas discharge devices |
| 06/11/1997 | EP0574554B1 Driver circuit for a plurality of gas discharge lamps |
| 06/11/1997 | CN1151532A Strobe dimmer of which luminous intensity and color temperature are controllable |
| 06/10/1997 | US5637965 Simultaneous controlled excitation of sodium and mercury |
| 06/10/1997 | US5637964 Remote control system for individual control of spaced lighting fixtures |
| 06/10/1997 | US5637963 Electrodeless lamp having a narrow gap between a sealed tube and the arc chamber so as to form a consistent cold spot |
| 06/05/1997 | WO1997020452A1 Circuit for firing a high-pressure gas discharge lamp |
| 06/05/1997 | DE19544842A1 Eingangsbeschaltung für eine Zündvorrichtung einer Hochdruck-Gasentladungslampe Input circuit for an ignition device of a high-pressure gas discharge lamp |